Henry martin seybold and albert harvey stites



(Nn Model.) l

SEYB'OLD 8u A. H. STII'ES.

SPEGULUM.

No. 535,298. Patented Mr. 5, 1895.

UNITED STATES PATENT OEEICE0 HENRY MARTIN SEYBOLD AND ALBERT HARVEYSTITES, OF SIOUX FALLS, SOUTH DAKOTA; SAID STITES ASSIGNOR TO SAIDSEYBOLD.

SPECULUIVI.

SPECIFICATION forming part 4of Letters Patent No. 535,298, dated March5, 1895.

Application filed April 3, 1893. Serial No. 468,925. (No model.)

To @ZZ whom t may concern:

Be it known that we, HENRY MARTIN SEY- BoLD and ALBERT HARVEY SrI'rEs,citizens of the United States, residing at Sioux Falls, in the county ofMinnehaha and State of South Dakota, have invented certain new anduseful Improvements in Speculums; and we do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention is an improvement in speculums, and the novelty consistsin the novel construction and combination of the several parts, all aswill be more fully set forth and explained, as well as pointed out inthe claim.

In the accompanying drawings: Figure 1, is a perspective view of thisdevice closed. Fig. 2, is a like View of the same, the parts opened asin use. Fig. 3, is a central sectional view.

Except in the particulars hereinafter explained and claimed this deviceis of the usual and ordinary structure or character, and in theseparticulars need not new be described.

The letter A, designates the spcculum consisting of two concave-convex,curved seg mental plates a, a, hinged or pivoted together at their endsa', so that they may be spread apart or distended, turning on saidpivots or hinges. At the center the inner edges of these plates arerecessed at B, and formed with rearwardly extending ilanges C. At oneend each of these plates is provided with a forwardly extending springarm D, provided at the end with a ball d. The plates may be spread apartby these arms and the balls interlocking with each other hold them insuc position.

The speculumis operated in the usual way and manner, and when it isinserted in the place where it is to be used, by engaging the balls onthe arms each with the other the two parts of the speculum will be heldwide open. When it is desired to remove the speculum from the placewhere it has been used, the balls are disengaged from each other and theparts of the speculum closed, as shown in Figs. 1 and 3.

This device is of special value lin use for caponizing fowl, as by itthe parts which are to loe reached for cutting are very easilydisplayed, the parts of the speculumbeing held open while the operationis being performed.

The combination of the two concavo convex segmental plates a, a, witheach other, each hinged at a', and anged at C, and having a spring armD, provided with a ball d, at its end, and adapted to operate in themanner set forth.

tures in presence of two witnesses.

vHENRY MARTIN SEYBOLD. ALBERT HARVEY STITES.

Witnesses:

HENRY SCHAETZEL,

G. H. DURAND.

I 6o In testimony whereof we affix our sgna-

